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Download Climate Timeseries

TNI Index

The timeseries is calculated from the HadISST and the NCEP OI Datasets. It is the standardized Nina 12 minus the Nina 4 with a 5 month running mean applied which is then standardized using the 1950-1979 period.

Time Interval: Monthly
Time Coverage: 1871 to present
Update Status: updated monthly

Get Data:

TNI: Standard PSD Format (What is standard format?)

Source:
Data is from NOAA PSD using the HadISST dataset. Index was originally developed by Kevin Trenberth of NCAR/CGD. PSD is updating the index each month. This version is based on the latest HADISST and NCEP OI datasets.

References:

  1. Kevin E. Trenberth and David P. Stepaniak: J. Climate, 14, 1697-1701.
[ SOI | NAO | Rec NAO | AO | AO 20thCR | PDO | NP | TPI | Iceland P | Azores P | Gilbralter P | Nagasaki P | Madras P ]
[ Niño1+2 | Niño3 | Niño3.4 | Niño 4 | AMO | Global T stations | Global T+SST (NASA) | Global T+SST (CRU) | Sunspots ]



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Document maintained by Cathy Smith (cathy.smith@noaa.gov)
Updated: Oct 15, 2009 15:06:01 MDT
http://esrl.noaa.gov/psd/gcos_wgsp/Timeseries/TNI/index.html
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